Enterasys Matrix 7G4270-12 Hardware Installation Manual page 46

Backplane Connections and Installation Rules
Example 5 (Figure
Shows chassis slots 1 and 5 populated with 6x1xx, 6x2xx modules, respectively; slots 2 through 4
with DFE modules, but not a bridging module (such as the 7H4382-25, 7H4382-49, 7H4383-49, or
7H4385-49); and slots 6 and 7 with 6x3xx modules.
In this module arrangement, the 6x1xx and 6x2xx modules in slots 1 and 5 can only communicate
with each other, because there is no 6x3xx module in one of the first five slots to serve as the proxy
bridge to communicate with the 6x3xx modules in slots 6 and 7. The 7x4xxx DFE modules in slots
2, 3, and 4 will operate under one IP address. Since there is no bridging module, the DFE modules
will not communicate with any other modules in the chassis.
Rule: In this example, there must be at least one 6x3xx series module, and a 7H4382-25,
7H4382-49, 7H4383-49, or 7H4385-49 bridging module in slots 1 through 5 to enable
communications between all generations of modules in the chassis.
Example 6 (Figure
The module arrangement in this example is similar to the one shown in
described in Example 5. The only difference is that a 7H4382-49 bridging module is installed in
slot 2, enabling all modules to communicate with each other.
Rule: In this example, the 7H4382-49 serves as both the FTM1-to-FTM2 bridge and the
five-to-seven slot proxy bridge. The 6x3xx does not serve as a proxy bridge in this configuration
because the 7H4382-49 is in a slot with a lower number. You can use the 7H4382-25, 7H4382-49,
7H4383-49, or 7H4385-49 as a bridging module depending on the need.
3-10 Installation
3-4, E)
3-4, F)
Figure 3-4, and
E